Choose the best answer (A, B, C or D).
1. People living in the slums never get good healthcare, ________?
A. do they B. don’t they C. are they D. aren’t they
2. Peter wants to have _________ business trips because he has become seriously weak.
A. fewer B. less C. more D. much
3. We are looking for cheap, clean, _________ sources of energy.
A. polluting B. harmful C. expensive D. effective
4. Everyone is ready for the game, ________?
A. is it B. isn’t he? C. aren’t they D. is there
